Are my health measurements kept private?

Yes. All computations occur entirely within your browser for complete user privacy.

Is this a substitute for medical advice?

No. The calculator is for informational fitness reference based on established formulas. Consult a healthcare provider for medical advice.

TDEE Calculator Online - Total Daily Energy Expenditure & Calorie Maintenance

Sex

Age

Height (cm)

Weight (kg)

Physical Activity Level

Daily Maintenance Calories (TDEE)

2,288 kcal

Calories to consume to maintain current weight

Cutting / Fat Loss (-500 kcal)

1,788 kcal

Bulking / Muscle Gain (+500 kcal)

2,788 kcal

What is TDEE (Total Daily Energy Expenditure) Calculator?

The TDEE (Total Daily Energy Expenditure) Calculator on NexTools is an interactive health, biometric, and fitness calculation utility designed to help individuals, athletes, and wellness coaches measure critical metabolic markers. Built entirely with client-side JavaScript, it calculates metrics instantly in your browser with zero latency, zero telemetry, and complete data privacy.

Key Capabilities & Features

Clinical Formula Accuracy: Built using verified international scientific formulas (WHO, ACSM, Mifflin-St Jeor, Karvonen).
Dual Metric & Imperial Units: Seamlessly switch between kilograms/centimeters and pounds/feet/inches.
Complete Confidentiality: Your health biometrics stay strictly inside your browser memory and are never uploaded to any server.
Completely Free ($0 Cost): Unlimited calculations with zero subscriptions or paywalls.

How It Works

Select your preferred measurement units (Metric or Imperial).
Input your age, gender, height, weight, or exercise parameters into the form.
Inspect real-time clinical scores, category classifications, and personalized recommendations.

Frequently Asked Questions

Is TDEE (Total Daily Energy Expenditure) Calculator free to use?

Yes, 100% free with unlimited calculations. There are no fees, subscriptions, or accounts required.

Are my personal health measurements kept private?

Yes, absolutely. All calculations occur strictly on your local browser. Nothing is ever saved to or transmitted across external servers.

Is this tool intended as formal medical advice?

No. These tools provide informational health and fitness estimates based on established clinical formulas. Always consult a qualified physician or healthcare provider for diagnosis or medical treatment.